We have included it with the Cylinder, Threaded - M8 package in order to make your life easier. If the proximity sensors are operated at a temperature of -25°C~70°C, they will perform well. The pin count on this electronic component is 4. To achieve maximum efficiency, proximity sensors should be powered by 24V. In terms of operating temperature, proximity sensors can be operated at a minimum of -25°C. In order for proximity sensors to function properly, the operating temperature must not exceed 70°C. If you wish to ensure that the proximity sensors are operating properly, the rate should be 5kHz. The proximity sensors work best when the reed switch's internal contacts pass 10mA current.